/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:19:09,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:19:09,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:19:09,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:19:09,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:19:09,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:19:09,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:19:09,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:19:09,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:19:09,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:19:09,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:19:09,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:19:09,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:19:09,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:19:09,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:19:09,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:19:09,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:19:09,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:19:09,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:19:09,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:19:09,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:19:09,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:19:09,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:19:09,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:19:09,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:19:09,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:19:09,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:19:09,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:19:09,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:19:09,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:19:09,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:19:09,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:19:09,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:19:09,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:19:09,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:19:09,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:19:09,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:19:09,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:19:09,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:19:09,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:19:09,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:19:09,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:19:09,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:19:09,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:19:09,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:19:09,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:19:09,835 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:19:09,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:19:09,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:19:09,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:19:09,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:19:09,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:19:09,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:19:09,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:19:09,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:19:09,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:19:09,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:19:09,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:19:09,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:19:09,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:19:09,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:19:09,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:19:09,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:19:09,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:19:09,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:19:09,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:19:09,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:19:09,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:19:09,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:19:09,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:19:09,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:19:09,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:19:10,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:19:10,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:19:10,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:19:10,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:19:10,185 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:19:10,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42.c [2020-10-14 22:19:10,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2db3494/d3fe0fe68c50412288f4bf84a48498b5/FLAG99ca73859 [2020-10-14 22:19:10,951 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:19:10,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label42.c [2020-10-14 22:19:10,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2db3494/d3fe0fe68c50412288f4bf84a48498b5/FLAG99ca73859 [2020-10-14 22:19:11,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2db3494/d3fe0fe68c50412288f4bf84a48498b5 [2020-10-14 22:19:11,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:19:11,151 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:19:11,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:19:11,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:19:11,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:19:11,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:11" (1/1) ... [2020-10-14 22:19:11,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450dbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:11, skipping insertion in model container [2020-10-14 22:19:11,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:11" (1/1) ... [2020-10-14 22:19:11,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:19:11,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:19:12,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:19:12,151 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:19:12,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:19:12,531 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:19:12,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12 WrapperNode [2020-10-14 22:19:12,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:19:12,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:19:12,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:19:12,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:19:12,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... [2020-10-14 22:19:12,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:19:12,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:19:12,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:19:12,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:19:12,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:19:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:19:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:19:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:19:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:19:12,800 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:19:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:19:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:19:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:19:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:19:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:19:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:19:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:19:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:19:15,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:19:15,061 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:19:15,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:15 BoogieIcfgContainer [2020-10-14 22:19:15,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:19:15,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:19:15,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:19:15,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:19:15,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:19:11" (1/3) ... [2020-10-14 22:19:15,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c46fe14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:15, skipping insertion in model container [2020-10-14 22:19:15,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:12" (2/3) ... [2020-10-14 22:19:15,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c46fe14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:15, skipping insertion in model container [2020-10-14 22:19:15,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:15" (3/3) ... [2020-10-14 22:19:15,077 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label42.c [2020-10-14 22:19:15,088 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:19:15,097 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:19:15,113 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:19:15,141 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:19:15,141 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:19:15,142 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:19:15,142 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:19:15,142 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:19:15,142 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:19:15,142 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:19:15,142 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:19:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:19:15,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 22:19:15,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:15,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:15,184 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:15,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:15,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1984606347, now seen corresponding path program 1 times [2020-10-14 22:19:15,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:15,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165619041] [2020-10-14 22:19:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:15,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:15,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:19:15,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-14 22:19:15,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:15,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:19:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:19:15,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:16,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:16,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:16,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:19:16,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:16,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:19:16,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165619041] [2020-10-14 22:19:16,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:19:16,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:19:16,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673018832] [2020-10-14 22:19:16,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:19:16,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:16,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:19:16,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:19:16,095 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 22:19:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:21,328 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 22:19:21,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:19:21,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-10-14 22:19:21,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:21,354 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 22:19:21,355 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 22:19:21,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 22:19:21,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 22:19:21,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 22:19:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1666 transitions. [2020-10-14 22:19:21,485 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1666 transitions. Word has length 68 [2020-10-14 22:19:21,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:21,486 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1666 transitions. [2020-10-14 22:19:21,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:19:21,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1666 transitions. [2020-10-14 22:19:21,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-14 22:19:21,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:21,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:21,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:19:21,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:21,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:21,511 INFO L82 PathProgramCache]: Analyzing trace with hash -763824464, now seen corresponding path program 1 times [2020-10-14 22:19:21,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:21,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574433731] [2020-10-14 22:19:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:22,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:22,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-14 22:19:26,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:19:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:19:26,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:19:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 22:19:26,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:26,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:26,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:19:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:26,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:26,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:19:26,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:19:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:19:26,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:26,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 22:19:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:27,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:19:27,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:19:27,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:27,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 22:19:27,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 191 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:19:27,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574433731] [2020-10-14 22:19:27,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:27,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:19:27,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848750057] [2020-10-14 22:19:27,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:19:27,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:27,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:19:27,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:19:27,140 INFO L87 Difference]: Start difference. First operand 1031 states and 1666 transitions. Second operand 8 states. [2020-10-14 22:19:31,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:31,495 INFO L93 Difference]: Finished difference Result 2769 states and 4599 transitions. [2020-10-14 22:19:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:31,496 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 235 [2020-10-14 22:19:31,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:31,508 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 22:19:31,508 INFO L226 Difference]: Without dead ends: 1744 [2020-10-14 22:19:31,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:19:31,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-10-14 22:19:31,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1727. [2020-10-14 22:19:31,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-14 22:19:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2622 transitions. [2020-10-14 22:19:31,574 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2622 transitions. Word has length 235 [2020-10-14 22:19:31,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:31,575 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2622 transitions. [2020-10-14 22:19:31,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:19:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2622 transitions. [2020-10-14 22:19:31,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-14 22:19:31,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:31,584 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:31,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:19:31,584 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:31,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:31,585 INFO L82 PathProgramCache]: Analyzing trace with hash -523205664, now seen corresponding path program 1 times [2020-10-14 22:19:31,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:31,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857761838] [2020-10-14 22:19:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:31,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:34,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:35,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:35,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:19:35,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4165 [2020-10-14 22:19:35,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:35,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:35,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 22:19:35,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:35,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:35,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:35,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:35,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:19:35,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:35,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:35,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:35,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:35,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:36,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:19:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:36,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:19:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:36,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:19:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:36,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:36,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:36,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:19:36,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:36,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:19:36,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:36,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:36,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:36,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:19:36,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:19:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 122 proven. 87 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:19:36,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857761838] [2020-10-14 22:19:36,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:36,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:36,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039860340] [2020-10-14 22:19:36,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:36,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:36,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:36,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:36,335 INFO L87 Difference]: Start difference. First operand 1727 states and 2622 transitions. Second operand 7 states. [2020-10-14 22:19:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:40,242 INFO L93 Difference]: Finished difference Result 3864 states and 5927 transitions. [2020-10-14 22:19:40,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:19:40,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2020-10-14 22:19:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:40,270 INFO L225 Difference]: With dead ends: 3864 [2020-10-14 22:19:40,270 INFO L226 Difference]: Without dead ends: 2143 [2020-10-14 22:19:40,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:40,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2020-10-14 22:19:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1732. [2020-10-14 22:19:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1732 states. [2020-10-14 22:19:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2564 transitions. [2020-10-14 22:19:40,367 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2564 transitions. Word has length 275 [2020-10-14 22:19:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:40,368 INFO L479 AbstractCegarLoop]: Abstraction has 1732 states and 2564 transitions. [2020-10-14 22:19:40,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2564 transitions. [2020-10-14 22:19:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-14 22:19:40,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:40,377 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:40,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:19:40,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:40,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:40,378 INFO L82 PathProgramCache]: Analyzing trace with hash -635099123, now seen corresponding path program 1 times [2020-10-14 22:19:40,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:40,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543067568] [2020-10-14 22:19:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-14 22:19:45,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:45,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:19:45,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-14 22:19:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:19:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:45,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:45,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:19:45,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:19:45,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:19:45,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:19:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:45,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 22:19:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:45,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:19:45,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:19:45,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-14 22:19:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:19:45,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:45,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:19:45,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 22:19:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-14 22:19:46,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543067568] [2020-10-14 22:19:46,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:46,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:46,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679726169] [2020-10-14 22:19:46,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:46,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:46,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:46,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:46,158 INFO L87 Difference]: Start difference. First operand 1732 states and 2564 transitions. Second operand 7 states. [2020-10-14 22:19:50,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:50,834 INFO L93 Difference]: Finished difference Result 4185 states and 6273 transitions. [2020-10-14 22:19:50,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:50,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 351 [2020-10-14 22:19:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:50,846 INFO L225 Difference]: With dead ends: 4185 [2020-10-14 22:19:50,847 INFO L226 Difference]: Without dead ends: 2102 [2020-10-14 22:19:50,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2020-10-14 22:19:50,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 2083. [2020-10-14 22:19:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-14 22:19:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2399 transitions. [2020-10-14 22:19:50,904 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2399 transitions. Word has length 351 [2020-10-14 22:19:50,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:50,905 INFO L479 AbstractCegarLoop]: Abstraction has 2083 states and 2399 transitions. [2020-10-14 22:19:50,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:50,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2399 transitions. [2020-10-14 22:19:50,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-10-14 22:19:50,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:50,917 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:50,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:19:50,917 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:50,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:50,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2116041325, now seen corresponding path program 1 times [2020-10-14 22:19:50,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:50,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049026349] [2020-10-14 22:19:50,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 530 [2020-10-14 22:19:56,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-14 22:19:56,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 22:19:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:19:56,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:56,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:56,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:19:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:19:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 22:19:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:56,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 22:19:56,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:56,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:19:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 22:19:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:19:56,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:19:56,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:19:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 22:19:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:19:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:19:56,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:19:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 364 proven. 198 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-14 22:19:56,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049026349] [2020-10-14 22:19:56,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:56,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:56,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765320202] [2020-10-14 22:19:56,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:56,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:56,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:56,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:56,856 INFO L87 Difference]: Start difference. First operand 2083 states and 2399 transitions. Second operand 7 states. [2020-10-14 22:20:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:00,014 INFO L93 Difference]: Finished difference Result 5658 states and 6902 transitions. [2020-10-14 22:20:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:20:00,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 514 [2020-10-14 22:20:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:00,047 INFO L225 Difference]: With dead ends: 5658 [2020-10-14 22:20:00,047 INFO L226 Difference]: Without dead ends: 3581 [2020-10-14 22:20:00,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2020-10-14 22:20:00,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3457. [2020-10-14 22:20:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2020-10-14 22:20:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 3857 transitions. [2020-10-14 22:20:00,202 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 3857 transitions. Word has length 514 [2020-10-14 22:20:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:00,203 INFO L479 AbstractCegarLoop]: Abstraction has 3457 states and 3857 transitions. [2020-10-14 22:20:00,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 3857 transitions. [2020-10-14 22:20:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-10-14 22:20:00,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:00,236 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:00,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:20:00,237 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:00,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:00,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1822958534, now seen corresponding path program 1 times [2020-10-14 22:20:00,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:00,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101463516] [2020-10-14 22:20:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:00,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:05,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 593 [2020-10-14 22:20:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 22:20:05,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:05,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:20:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:20:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:05,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:05,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:05,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:05,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:05,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:05,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:05,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:05,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:20:05,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:05,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:20:05,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:05,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:05,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:05,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:05,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:20:05,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 22:20:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:05,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:20:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:05,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:20:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:05,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:05,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:05,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 22:20:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:05,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:05,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:05,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:05,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 393 proven. 198 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-14 22:20:06,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101463516] [2020-10-14 22:20:06,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:06,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:06,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995561985] [2020-10-14 22:20:06,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:06,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:06,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:06,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:06,023 INFO L87 Difference]: Start difference. First operand 3457 states and 3857 transitions. Second operand 7 states. [2020-10-14 22:20:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:09,362 INFO L93 Difference]: Finished difference Result 9095 states and 10824 transitions. [2020-10-14 22:20:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:20:09,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 577 [2020-10-14 22:20:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:09,388 INFO L225 Difference]: With dead ends: 9095 [2020-10-14 22:20:09,389 INFO L226 Difference]: Without dead ends: 5644 [2020-10-14 22:20:09,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5644 states. [2020-10-14 22:20:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5644 to 5178. [2020-10-14 22:20:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5178 states. [2020-10-14 22:20:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 5707 transitions. [2020-10-14 22:20:09,543 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 5707 transitions. Word has length 577 [2020-10-14 22:20:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:09,544 INFO L479 AbstractCegarLoop]: Abstraction has 5178 states and 5707 transitions. [2020-10-14 22:20:09,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 5707 transitions. [2020-10-14 22:20:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2020-10-14 22:20:09,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:09,559 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:09,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:20:09,559 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:09,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2142580749, now seen corresponding path program 1 times [2020-10-14 22:20:09,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:09,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701146620] [2020-10-14 22:20:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:09,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:14,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:14,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 610 [2020-10-14 22:20:14,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:14,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 22:20:14,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:14,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-14 22:20:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 22:20:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:14,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:14,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:14,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:14,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:14,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:14,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:14,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:14,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:14,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:14,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:14,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:14,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:14,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:20:14,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:14,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:14,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 22:20:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:15,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:15,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:20:15,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:15,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:20:15,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:15,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:20:15,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:15,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-10-14 22:20:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:15,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:15,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:15,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:15,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:20:15,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:15,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 22:20:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:15,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:15,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:15,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:15,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:20:15,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:15,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:15,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 471 proven. 91 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2020-10-14 22:20:15,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701146620] [2020-10-14 22:20:15,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:15,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:15,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455110487] [2020-10-14 22:20:15,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:15,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:15,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:15,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:15,476 INFO L87 Difference]: Start difference. First operand 5178 states and 5707 transitions. Second operand 7 states. [2020-10-14 22:20:18,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:18,782 INFO L93 Difference]: Finished difference Result 11137 states and 12703 transitions. [2020-10-14 22:20:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:20:18,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 594 [2020-10-14 22:20:18,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:18,811 INFO L225 Difference]: With dead ends: 11137 [2020-10-14 22:20:18,811 INFO L226 Difference]: Without dead ends: 5965 [2020-10-14 22:20:18,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:20:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5965 states. [2020-10-14 22:20:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5965 to 5879. [2020-10-14 22:20:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5879 states. [2020-10-14 22:20:18,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 6472 transitions. [2020-10-14 22:20:18,979 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 6472 transitions. Word has length 594 [2020-10-14 22:20:18,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:18,980 INFO L479 AbstractCegarLoop]: Abstraction has 5879 states and 6472 transitions. [2020-10-14 22:20:18,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:18,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 6472 transitions. [2020-10-14 22:20:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-10-14 22:20:18,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:18,999 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:19,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:20:19,000 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:19,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:19,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1479204906, now seen corresponding path program 1 times [2020-10-14 22:20:19,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:19,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168597063] [2020-10-14 22:20:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 691 [2020-10-14 22:20:24,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:20:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:24,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:20:24,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:24,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:20:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 22:20:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:20:24,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 22:20:24,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:24,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:24,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 22:20:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-10-14 22:20:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:24,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:20:24,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-14 22:20:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:24,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:20:24,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 378 proven. 198 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-14 22:20:25,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168597063] [2020-10-14 22:20:25,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:25,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:25,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991441142] [2020-10-14 22:20:25,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:25,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:25,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:25,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:25,110 INFO L87 Difference]: Start difference. First operand 5879 states and 6472 transitions. Second operand 7 states. [2020-10-14 22:20:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:28,621 INFO L93 Difference]: Finished difference Result 16660 states and 19158 transitions. [2020-10-14 22:20:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:28,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 675 [2020-10-14 22:20:28,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:28,672 INFO L225 Difference]: With dead ends: 16660 [2020-10-14 22:20:28,672 INFO L226 Difference]: Without dead ends: 10787 [2020-10-14 22:20:28,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10787 states. [2020-10-14 22:20:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10787 to 9975. [2020-10-14 22:20:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9975 states. [2020-10-14 22:20:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9975 states to 9975 states and 11102 transitions. [2020-10-14 22:20:28,913 INFO L78 Accepts]: Start accepts. Automaton has 9975 states and 11102 transitions. Word has length 675 [2020-10-14 22:20:28,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:28,914 INFO L479 AbstractCegarLoop]: Abstraction has 9975 states and 11102 transitions. [2020-10-14 22:20:28,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 9975 states and 11102 transitions. [2020-10-14 22:20:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-10-14 22:20:28,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:28,935 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:28,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:20:28,936 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:28,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:28,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1846242763, now seen corresponding path program 1 times [2020-10-14 22:20:28,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:28,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456281855] [2020-10-14 22:20:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:29,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:29,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:29,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 763 [2020-10-14 22:20:34,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:34,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 22:20:34,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-10-14 22:20:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:20:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:34,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:34,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:34,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:34,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:34,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:20:34,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 22:20:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:34,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:20:34,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:20:34,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:20:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-14 22:20:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 22:20:34,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2020-10-14 22:20:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:34,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2020-10-14 22:20:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:34,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:34,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:34,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:34,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:20:34,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:34,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:34,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:34,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:34,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:34,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:35,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 519 proven. 198 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2020-10-14 22:20:35,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456281855] [2020-10-14 22:20:35,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:35,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:35,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251916885] [2020-10-14 22:20:35,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:35,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:35,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:35,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:35,073 INFO L87 Difference]: Start difference. First operand 9975 states and 11102 transitions. Second operand 7 states. [2020-10-14 22:20:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:38,366 INFO L93 Difference]: Finished difference Result 22820 states and 26436 transitions. [2020-10-14 22:20:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:38,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 745 [2020-10-14 22:20:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:38,423 INFO L225 Difference]: With dead ends: 22820 [2020-10-14 22:20:38,424 INFO L226 Difference]: Without dead ends: 12851 [2020-10-14 22:20:38,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:20:38,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12851 states. [2020-10-14 22:20:38,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12851 to 12354. [2020-10-14 22:20:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12354 states. [2020-10-14 22:20:38,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 13670 transitions. [2020-10-14 22:20:38,753 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 13670 transitions. Word has length 745 [2020-10-14 22:20:38,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:38,754 INFO L479 AbstractCegarLoop]: Abstraction has 12354 states and 13670 transitions. [2020-10-14 22:20:38,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:38,754 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 13670 transitions. [2020-10-14 22:20:38,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2020-10-14 22:20:38,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:38,780 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:38,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:20:38,781 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:38,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:38,781 INFO L82 PathProgramCache]: Analyzing trace with hash -340965758, now seen corresponding path program 1 times [2020-10-14 22:20:38,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:38,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448409187] [2020-10-14 22:20:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:38,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:39,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:39,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 781 [2020-10-14 22:20:43,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:20:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 22:20:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:20:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:44,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:44,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:44,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:44,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:44,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:44,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:44,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:44,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:44,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:20:44,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 22:20:44,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:44,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 22:20:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:44,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:44,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:20:44,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:44,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 22:20:44,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:44,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 22:20:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 22:20:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:44,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:44,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:44,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:44,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:44,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:20:44,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:44,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:44,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2020-10-14 22:20:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:44,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:44,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:44,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:44,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 468 proven. 198 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-14 22:20:45,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448409187] [2020-10-14 22:20:45,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:45,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:20:45,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647443034] [2020-10-14 22:20:45,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:20:45,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:45,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:20:45,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:20:45,467 INFO L87 Difference]: Start difference. First operand 12354 states and 13670 transitions. Second operand 8 states. [2020-10-14 22:20:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:49,346 INFO L93 Difference]: Finished difference Result 27408 states and 30602 transitions. [2020-10-14 22:20:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:49,347 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 765 [2020-10-14 22:20:49,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:49,404 INFO L225 Difference]: With dead ends: 27408 [2020-10-14 22:20:49,405 INFO L226 Difference]: Without dead ends: 15060 [2020-10-14 22:20:49,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15060 states. [2020-10-14 22:20:49,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15060 to 15052. [2020-10-14 22:20:49,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15052 states. [2020-10-14 22:20:49,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15052 states to 15052 states and 16287 transitions. [2020-10-14 22:20:49,837 INFO L78 Accepts]: Start accepts. Automaton has 15052 states and 16287 transitions. Word has length 765 [2020-10-14 22:20:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:49,839 INFO L479 AbstractCegarLoop]: Abstraction has 15052 states and 16287 transitions. [2020-10-14 22:20:49,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:20:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 15052 states and 16287 transitions. [2020-10-14 22:20:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2020-10-14 22:20:49,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:49,892 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:49,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:20:49,892 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:49,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1829687377, now seen corresponding path program 1 times [2020-10-14 22:20:49,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:49,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933565648] [2020-10-14 22:20:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:50,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:51,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1178 [2020-10-14 22:20:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:20:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 22:20:55,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 447 [2020-10-14 22:20:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:20:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:20:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:55,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:20:55,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:20:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:20:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 22:20:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:20:55,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:20:55,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:55,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:55,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:20:55,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 691 [2020-10-14 22:20:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:56,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:56,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 801 [2020-10-14 22:20:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:56,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:20:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:20:56,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:56,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:20:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:56,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:56,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:56,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:56,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 824 proven. 356 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2020-10-14 22:20:57,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933565648] [2020-10-14 22:20:57,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:57,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:57,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226080814] [2020-10-14 22:20:57,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:57,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:57,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:57,590 INFO L87 Difference]: Start difference. First operand 15052 states and 16287 transitions. Second operand 7 states. [2020-10-14 22:21:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:00,929 INFO L93 Difference]: Finished difference Result 31993 states and 35197 transitions. [2020-10-14 22:21:00,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:00,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1156 [2020-10-14 22:21:00,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:00,991 INFO L225 Difference]: With dead ends: 31993 [2020-10-14 22:21:00,991 INFO L226 Difference]: Without dead ends: 16947 [2020-10-14 22:21:01,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:01,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16947 states. [2020-10-14 22:21:01,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16947 to 16741. [2020-10-14 22:21:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16741 states. [2020-10-14 22:21:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16741 states to 16741 states and 18013 transitions. [2020-10-14 22:21:01,360 INFO L78 Accepts]: Start accepts. Automaton has 16741 states and 18013 transitions. Word has length 1156 [2020-10-14 22:21:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:01,361 INFO L479 AbstractCegarLoop]: Abstraction has 16741 states and 18013 transitions. [2020-10-14 22:21:01,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:01,362 INFO L276 IsEmpty]: Start isEmpty. Operand 16741 states and 18013 transitions. [2020-10-14 22:21:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2020-10-14 22:21:01,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:01,410 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:01,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:21:01,410 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:01,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:01,411 INFO L82 PathProgramCache]: Analyzing trace with hash 74060279, now seen corresponding path program 1 times [2020-10-14 22:21:01,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:01,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137639697] [2020-10-14 22:21:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:01,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:01,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:02,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1222 [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 22:21:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:21:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:06,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:06,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:06,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:21:06,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:21:06,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:21:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:06,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:21:06,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:21:06,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:21:06,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 22:21:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:07,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:07,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:21:07,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:07,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 22:21:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:07,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:07,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:21:07,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:07,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:21:07,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:07,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:07,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:07,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:21:07,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:07,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:07,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-14 22:21:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:07,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:07,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:07,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:21:07,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:07,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:21:07,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:07,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:21:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:07,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:07,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 22:21:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:07,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:07,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:21:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:07,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2426 backedges. 833 proven. 410 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2020-10-14 22:21:08,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137639697] [2020-10-14 22:21:08,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:08,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:08,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360484754] [2020-10-14 22:21:08,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:08,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:08,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:08,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:08,653 INFO L87 Difference]: Start difference. First operand 16741 states and 18013 transitions. Second operand 7 states. [2020-10-14 22:21:11,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:11,705 INFO L93 Difference]: Finished difference Result 33490 states and 36043 transitions. [2020-10-14 22:21:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:21:11,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1202 [2020-10-14 22:21:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:11,751 INFO L225 Difference]: With dead ends: 33490 [2020-10-14 22:21:11,751 INFO L226 Difference]: Without dead ends: 16755 [2020-10-14 22:21:11,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:11,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16755 states. [2020-10-14 22:21:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16755 to 16406. [2020-10-14 22:21:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16406 states. [2020-10-14 22:21:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16406 states to 16406 states and 17651 transitions. [2020-10-14 22:21:12,024 INFO L78 Accepts]: Start accepts. Automaton has 16406 states and 17651 transitions. Word has length 1202 [2020-10-14 22:21:12,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:12,025 INFO L479 AbstractCegarLoop]: Abstraction has 16406 states and 17651 transitions. [2020-10-14 22:21:12,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 16406 states and 17651 transitions. [2020-10-14 22:21:12,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2020-10-14 22:21:12,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:12,068 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:12,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:21:12,068 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:12,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1960448650, now seen corresponding path program 1 times [2020-10-14 22:21:12,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:12,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105603266] [2020-10-14 22:21:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:12,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:12,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:12,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:13,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:15,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1257 [2020-10-14 22:21:17,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:21:17,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:21:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:21:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:21:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:17,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:21:17,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:21:17,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 22:21:17,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:21:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:21:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:21:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:21:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 22:21:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:18,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:18,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:21:18,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:18,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 22:21:18,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:18,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:21:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:18,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:18,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:18,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:18,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:21:18,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:21:18,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:18,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 768 [2020-10-14 22:21:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:18,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:18,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:18,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:18,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 878 [2020-10-14 22:21:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:18,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:18,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:21:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:18,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:18,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:18,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:18,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:21:18,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:21:18,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:18,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:18,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2289 backedges. 366 proven. 767 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2020-10-14 22:21:19,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105603266] [2020-10-14 22:21:19,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:19,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:19,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677713732] [2020-10-14 22:21:19,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:19,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:19,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:19,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:19,216 INFO L87 Difference]: Start difference. First operand 16406 states and 17651 transitions. Second operand 7 states. [2020-10-14 22:21:21,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:21,987 INFO L93 Difference]: Finished difference Result 33492 states and 36010 transitions. [2020-10-14 22:21:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:21,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1233 [2020-10-14 22:21:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:22,021 INFO L225 Difference]: With dead ends: 33492 [2020-10-14 22:21:22,022 INFO L226 Difference]: Without dead ends: 17092 [2020-10-14 22:21:22,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17092 states. [2020-10-14 22:21:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17092 to 16745. [2020-10-14 22:21:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16745 states. [2020-10-14 22:21:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16745 states to 16745 states and 17993 transitions. [2020-10-14 22:21:22,302 INFO L78 Accepts]: Start accepts. Automaton has 16745 states and 17993 transitions. Word has length 1233 [2020-10-14 22:21:22,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:22,303 INFO L479 AbstractCegarLoop]: Abstraction has 16745 states and 17993 transitions. [2020-10-14 22:21:22,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:22,303 INFO L276 IsEmpty]: Start isEmpty. Operand 16745 states and 17993 transitions. [2020-10-14 22:21:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1481 [2020-10-14 22:21:22,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:22,339 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:22,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:21:22,340 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:22,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:22,341 INFO L82 PathProgramCache]: Analyzing trace with hash 316631206, now seen corresponding path program 1 times [2020-10-14 22:21:22,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:22,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112610553] [2020-10-14 22:21:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:23,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:23,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:27,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1506 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:21:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:21:27,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:27,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:27,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:21:27,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:27,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:21:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:21:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:21:28,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 22:21:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:21:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:21:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:21:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:21:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:28,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:21:28,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:21:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-14 22:21:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:21:28,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:21:28,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:29,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2020-10-14 22:21:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:29,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:29,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:29,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:29,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:29,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:21:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:29,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:29,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1125 [2020-10-14 22:21:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:29,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:21:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:29,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:29,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:21:29,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:29,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:30,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3385 backedges. 688 proven. 779 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2020-10-14 22:21:30,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112610553] [2020-10-14 22:21:30,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:30,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:30,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589309219] [2020-10-14 22:21:30,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:30,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:30,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:30,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:30,614 INFO L87 Difference]: Start difference. First operand 16745 states and 17993 transitions. Second operand 7 states. [2020-10-14 22:21:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:33,438 INFO L93 Difference]: Finished difference Result 33490 states and 36005 transitions. [2020-10-14 22:21:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:33,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1480 [2020-10-14 22:21:33,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:33,475 INFO L225 Difference]: With dead ends: 33490 [2020-10-14 22:21:33,476 INFO L226 Difference]: Without dead ends: 17090 [2020-10-14 22:21:33,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17090 states. [2020-10-14 22:21:33,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17090 to 16745. [2020-10-14 22:21:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16745 states. [2020-10-14 22:21:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16745 states to 16745 states and 17941 transitions. [2020-10-14 22:21:33,760 INFO L78 Accepts]: Start accepts. Automaton has 16745 states and 17941 transitions. Word has length 1480 [2020-10-14 22:21:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:33,761 INFO L479 AbstractCegarLoop]: Abstraction has 16745 states and 17941 transitions. [2020-10-14 22:21:33,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 16745 states and 17941 transitions. [2020-10-14 22:21:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-10-14 22:21:33,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:33,799 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:33,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:21:33,800 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:33,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:33,800 INFO L82 PathProgramCache]: Analyzing trace with hash -96904897, now seen corresponding path program 1 times [2020-10-14 22:21:33,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:33,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598906176] [2020-10-14 22:21:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:34,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:34,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1542 [2020-10-14 22:21:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:21:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:21:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:21:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:21:39,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:21:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:21:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:21:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:39,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:21:39,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:21:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:21:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:39,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:21:39,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:21:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:39,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 22:21:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:21:40,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:21:40,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:21:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:40,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1049 [2020-10-14 22:21:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1159 [2020-10-14 22:21:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:21:40,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 671 proven. 731 refuted. 0 times theorem prover too weak. 2579 trivial. 0 not checked. [2020-10-14 22:21:41,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598906176] [2020-10-14 22:21:41,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:41,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:41,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146792465] [2020-10-14 22:21:41,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:41,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:41,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:41,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:41,577 INFO L87 Difference]: Start difference. First operand 16745 states and 17941 transitions. Second operand 7 states. [2020-10-14 22:21:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:44,964 INFO L93 Difference]: Finished difference Result 33492 states and 35923 transitions. [2020-10-14 22:21:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:21:44,965 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1514 [2020-10-14 22:21:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:44,999 INFO L225 Difference]: With dead ends: 33492 [2020-10-14 22:21:45,000 INFO L226 Difference]: Without dead ends: 17092 [2020-10-14 22:21:45,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:21:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17092 states. [2020-10-14 22:21:45,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17092 to 16408. [2020-10-14 22:21:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16408 states. [2020-10-14 22:21:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16408 states to 16408 states and 17562 transitions. [2020-10-14 22:21:45,255 INFO L78 Accepts]: Start accepts. Automaton has 16408 states and 17562 transitions. Word has length 1514 [2020-10-14 22:21:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:45,256 INFO L479 AbstractCegarLoop]: Abstraction has 16408 states and 17562 transitions. [2020-10-14 22:21:45,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 16408 states and 17562 transitions. [2020-10-14 22:21:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2020-10-14 22:21:45,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:45,292 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:45,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:21:45,292 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:45,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1579834, now seen corresponding path program 1 times [2020-10-14 22:21:45,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:45,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891097328] [2020-10-14 22:21:45,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:45,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:45,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:46,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1603 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-14 22:21:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:21:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:50,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:50,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:21:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:50,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:21:50,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:21:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:51,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:21:51,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:21:51,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:21:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:51,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:21:51,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:21:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-14 22:21:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:21:51,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:21:51,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1110 [2020-10-14 22:21:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1220 [2020-10-14 22:21:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:21:51,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-14 22:21:51,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:21:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:21:51,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:51,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4164 backedges. 953 proven. 333 refuted. 0 times theorem prover too weak. 2878 trivial. 0 not checked. [2020-10-14 22:21:52,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891097328] [2020-10-14 22:21:52,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:52,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:52,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934734787] [2020-10-14 22:21:52,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:52,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:52,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:52,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:52,915 INFO L87 Difference]: Start difference. First operand 16408 states and 17562 transitions. Second operand 7 states. [2020-10-14 22:21:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:55,872 INFO L93 Difference]: Finished difference Result 32484 states and 34791 transitions. [2020-10-14 22:21:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:21:55,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1575 [2020-10-14 22:21:55,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:55,908 INFO L225 Difference]: With dead ends: 32484 [2020-10-14 22:21:55,908 INFO L226 Difference]: Without dead ends: 16421 [2020-10-14 22:21:55,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:55,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16421 states. [2020-10-14 22:21:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16421 to 16409. [2020-10-14 22:21:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16409 states. [2020-10-14 22:21:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16409 states to 16409 states and 17490 transitions. [2020-10-14 22:21:56,140 INFO L78 Accepts]: Start accepts. Automaton has 16409 states and 17490 transitions. Word has length 1575 [2020-10-14 22:21:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:56,141 INFO L479 AbstractCegarLoop]: Abstraction has 16409 states and 17490 transitions. [2020-10-14 22:21:56,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 16409 states and 17490 transitions. [2020-10-14 22:21:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1577 [2020-10-14 22:21:56,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:56,173 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:56,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:21:56,174 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:56,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:56,174 INFO L82 PathProgramCache]: Analyzing trace with hash 2101478051, now seen corresponding path program 1 times [2020-10-14 22:21:56,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:56,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904178008] [2020-10-14 22:21:56,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:56,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:56,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1604 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1122 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:22:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:01,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:01,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:01,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:22:01,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:22:01,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:22:01,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:22:01,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:02,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:22:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:22:02,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:02,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:22:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:02,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:22:02,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:22:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:02,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:02,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:22:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:22:02,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-14 22:22:02,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 22:22:02,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:22:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:22:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:22:03,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 22:22:03,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:22:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:03,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-14 22:22:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:22:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:22:03,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:22:03,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4171 backedges. 1139 proven. 112 refuted. 0 times theorem prover too weak. 2920 trivial. 0 not checked. [2020-10-14 22:22:04,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904178008] [2020-10-14 22:22:04,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:04,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:04,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174733135] [2020-10-14 22:22:04,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:04,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:04,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:04,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:04,614 INFO L87 Difference]: Start difference. First operand 16409 states and 17490 transitions. Second operand 7 states. [2020-10-14 22:22:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:07,608 INFO L93 Difference]: Finished difference Result 36555 states and 39093 transitions. [2020-10-14 22:22:07,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:22:07,609 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1576 [2020-10-14 22:22:07,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:07,641 INFO L225 Difference]: With dead ends: 36555 [2020-10-14 22:22:07,642 INFO L226 Difference]: Without dead ends: 20491 [2020-10-14 22:22:07,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:22:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20491 states. [2020-10-14 22:22:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20491 to 18455. [2020-10-14 22:22:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18455 states. [2020-10-14 22:22:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18455 states to 18455 states and 19758 transitions. [2020-10-14 22:22:07,905 INFO L78 Accepts]: Start accepts. Automaton has 18455 states and 19758 transitions. Word has length 1576 [2020-10-14 22:22:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:07,906 INFO L479 AbstractCegarLoop]: Abstraction has 18455 states and 19758 transitions. [2020-10-14 22:22:07,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 18455 states and 19758 transitions. [2020-10-14 22:22:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2065 [2020-10-14 22:22:07,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:07,956 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:07,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:22:07,956 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:07,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2057393347, now seen corresponding path program 1 times [2020-10-14 22:22:07,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:07,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160778238] [2020-10-14 22:22:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:08,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:09,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2096 [2020-10-14 22:22:13,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:13,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 22:22:13,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:22:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 22:22:13,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:13,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:13,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:13,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:13,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:22:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:22:13,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:22:13,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:22:13,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:22:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:22:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-14 22:22:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:22:13,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2020-10-14 22:22:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2020-10-14 22:22:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:22:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2020-10-14 22:22:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:14,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:22:14,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:22:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1286 [2020-10-14 22:22:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:22:14,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:22:14,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:22:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1398 [2020-10-14 22:22:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:22:14,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1469 [2020-10-14 22:22:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:22:14,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:22:14,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:22:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1723 [2020-10-14 22:22:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:22:14,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:22:14,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:22:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1888 [2020-10-14 22:22:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:14,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:14,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:22:14,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:14,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:22:14,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:14,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:22:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9137 backedges. 1122 proven. 1316 refuted. 0 times theorem prover too weak. 6699 trivial. 0 not checked. [2020-10-14 22:22:16,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160778238] [2020-10-14 22:22:16,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:16,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:16,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121792873] [2020-10-14 22:22:16,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:16,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:16,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:16,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:16,596 INFO L87 Difference]: Start difference. First operand 18455 states and 19758 transitions. Second operand 7 states. [2020-10-14 22:22:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:19,893 INFO L93 Difference]: Finished difference Result 39965 states and 42933 transitions. [2020-10-14 22:22:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:22:19,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2064 [2020-10-14 22:22:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:19,928 INFO L225 Difference]: With dead ends: 39965 [2020-10-14 22:22:19,928 INFO L226 Difference]: Without dead ends: 21855 [2020-10-14 22:22:19,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:22:19,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21855 states. [2020-10-14 22:22:20,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21855 to 20832. [2020-10-14 22:22:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20832 states. [2020-10-14 22:22:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20832 states to 20832 states and 22400 transitions. [2020-10-14 22:22:20,244 INFO L78 Accepts]: Start accepts. Automaton has 20832 states and 22400 transitions. Word has length 2064 [2020-10-14 22:22:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:20,245 INFO L479 AbstractCegarLoop]: Abstraction has 20832 states and 22400 transitions. [2020-10-14 22:22:20,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 20832 states and 22400 transitions. [2020-10-14 22:22:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2106 [2020-10-14 22:22:20,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:20,313 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:20,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:22:20,313 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:20,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1652117094, now seen corresponding path program 1 times [2020-10-14 22:22:20,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:20,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277249887] [2020-10-14 22:22:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:21,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:21,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2139 [2020-10-14 22:22:25,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-14 22:22:25,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1315 [2020-10-14 22:22:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:22:25,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:26,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:26,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:26,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:22:26,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:22:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:22:26,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:22:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:26,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:22:26,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:26,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:22:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:26,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:22:26,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:26,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 22:22:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:26,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:22:26,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:26,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-14 22:22:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:22:26,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:22:26,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:22:26,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:22:26,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 22:22:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:22:26,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1187 [2020-10-14 22:22:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:26,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:22:26,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:26,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:22:26,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:26,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:22:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:26,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 22:22:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:27,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:27,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:27,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:27,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 22:22:27,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:27,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:22:27,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:27,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1512 [2020-10-14 22:22:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:27,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:27,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 22:22:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:27,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1764 [2020-10-14 22:22:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:27,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:27,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:27,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:22:27,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:22:27,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:27,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:22:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1929 [2020-10-14 22:22:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:27,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:27,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:22:27,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:27,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:22:27,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:27,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:27,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:27,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:22:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8828 backedges. 1982 proven. 489 refuted. 0 times theorem prover too weak. 6357 trivial. 0 not checked. [2020-10-14 22:22:29,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277249887] [2020-10-14 22:22:29,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:29,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:29,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364273130] [2020-10-14 22:22:29,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:29,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:29,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:29,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:29,947 INFO L87 Difference]: Start difference. First operand 20832 states and 22400 transitions. Second operand 7 states. [2020-10-14 22:22:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:33,237 INFO L93 Difference]: Finished difference Result 41670 states and 44818 transitions. [2020-10-14 22:22:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:22:33,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2105 [2020-10-14 22:22:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:33,270 INFO L225 Difference]: With dead ends: 41670 [2020-10-14 22:22:33,270 INFO L226 Difference]: Without dead ends: 20836 [2020-10-14 22:22:33,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:22:33,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20836 states. [2020-10-14 22:22:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20836 to 20485. [2020-10-14 22:22:33,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20485 states. [2020-10-14 22:22:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20485 states to 20485 states and 21947 transitions. [2020-10-14 22:22:33,520 INFO L78 Accepts]: Start accepts. Automaton has 20485 states and 21947 transitions. Word has length 2105 [2020-10-14 22:22:33,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:33,522 INFO L479 AbstractCegarLoop]: Abstraction has 20485 states and 21947 transitions. [2020-10-14 22:22:33,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 20485 states and 21947 transitions. [2020-10-14 22:22:33,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2122 [2020-10-14 22:22:33,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:33,564 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:33,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:22:33,564 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:33,565 INFO L82 PathProgramCache]: Analyzing trace with hash 172188194, now seen corresponding path program 1 times [2020-10-14 22:22:33,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:33,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352202658] [2020-10-14 22:22:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:34,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2153 [2020-10-14 22:22:39,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5296 [2020-10-14 22:22:39,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:22:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 938 [2020-10-14 22:22:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:22:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:39,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:39,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:22:39,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:22:39,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:22:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:22:39,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:22:39,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:22:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:22:39,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:22:39,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:22:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:22:39,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:22:39,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:22:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:22:40,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:22:40,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:22:40,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:22:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:22:40,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 22:22:40,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:22:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:22:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:41,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:41,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-14 22:22:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:41,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:41,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1